This is the first Tim Bowler book that I have read and I began reading this book after reading the first two chapters in another "teaser" booklet. So I am by no means an expert on this author, his work or style.
I have to say, sadly the beginning, with its mystery and suspense, was a lot more promising and interesting then the ending, with its rather mundanely obvious resolution. H however, that a number of questions do remain, even when the book has finished - those questions relate more to the way the events unfolded as oppose to the way the events finished, so the book does stay with you for a while making you go over things that you have read, trying to make sense of all of it.
The characters are not one dimensional, but I can't say they were much three dimensional either - I guess they were, for the lack of better explanation, two dimensional, in that each had a particular way of behaving and stuck with that throughout the story, yet the majority of them were very stereotypical and that made them that tiny bit less realistic. Further, the story line is gripping enough that it made me, from about 2/3 of the way into the book until the end, just want to keep reading and reading until I finished it, which is always a good sign.
Overall, I would recommend this to someone who is in need of a tale far away from their ordinary life, but who does not expect the heights of Harry Potter in terms of craftsmanship and intrigue with the characters and the story...